Merge "Migrate HostsideNetworkTestCase to use JUnit4" am: 1a59004c12

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2643291

Change-Id: I1608ba84fd54b9f2b5f8f128d13d2744431d41c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>